tree d0602cbb48742b3e39ab6bdcaa08c342d4cd2cae
parent 967ab999a090b1a4e7d3c7febfd6d89b42fb4cf4
author David S. Miller <davem@davemloft.net> 1217548730 -0700
committer David S. Miller <davem@davemloft.net> 1217548730 -0700

netdev: Fix lockdep warnings in multiqueue configurations.

When support for multiple TX queues were added, the
netif_tx_lock() routines we converted to iterate over
all TX queues and grab each queue's spinlock.

This causes heartburn for lockdep and it's not a healthy
thing to do with lots of TX queues anyways.

So modify this to use a top-level lock and a "frozen"
state for the individual TX queues.

Signed-off-by: David S. Miller <davem@davemloft.net>